Tractor trailer



FIG. 1 is a perspective view of a tractor trailer showing our newdesign;

FIG. 2 is an enlarged front elevation view thereof;

FIG. 3 is an enlarged rear elevation view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevation view thereof; and

FIG. 7 is a right side elevation view thereof.

The ornamental design for a tractor trailer, as shown.